Ecclesiastes 12:8-12

⁸ Vanity of vanities, saith the preacher; all is vanity.

⁹ And moreover, because the preacher was wise, he still taught the people knowledge; yea, he gave good heed, and sought out, and set in order many proverbs.

¹⁰ The preacher sought to find out acceptable words: and that which was written was upright, even words of truth.

¹¹ The words of the wise are as goads, and as nails fastened by the masters of assemblies, which are given from one shepherd.

¹² And further, by these, my son, be admonished: of making many books there is no end; and much study is a weariness of the flesh.